The engine light was on the other day and I went to Auto Zone to check. The code was P0456. And they told me that there was some minor problem with the fuel cap. I checked the cap and I tightened it again, everything was fine but the light was still on. That‘s going on?
challenging matter seek on google it could actually help
Evap emmision system detecting a leak, they said fuel cap cause often they are not tightened correctly to where a click is heard. Simply enough replace it have the ecm code cleared and see if it returns there may be a leak in the system elsewhere which you will need a smoke machine, that plugs into the Evap system to locate the leak
